baber/WOPTO huggingface dataset:
Patent GB-569866-A (GB)
Title: Improvements relating to the removal of fine solid particles from gases
IPC: B01D45/16
Filed: 1943-12-07
Abstract: 569,866. Dust separators. GAS LIGHT & COKE CO., and SILVER, L. Dec. 7, 1943, No. 20450. [Class 8 (ii)] [Also in Group II] A separator for removal of fine particles from a gas stream comprises two curved ducts 15 of gradually diminishing cross section such that the radius of curvature of each inner wall 16 is 2.5- 4 times the width of the duct at the bend where the width is at a minimum; the angle at which the duct walls converge and subsequently diverge after bending through 160-180 degrees being about 15 degrees. The two curved ducts are formed by partitions 7, Fig. 1, extending across the full depth of the container 1 from back to front and vertically downwards until curving inwardly at 14 towards extensions 13 of water trough 8. Water from overflow 9 takes the particles in the form of slurry over lips 18 to settling tank 20. In an alternative, arrangement, Fig. 3, the walls 13 are continued upwards to meet in a horizontal ridge at 25, and downwards to terminate at slots 26 down which the dry particles pass to hopper 2 and collecting vessel 20. The clean gas passes upwards between walls 14 and 18. The latter wall may be continued to meet the outer wall 1 and a slot may be provided near wall 1 allowing gas to pass upwards from below. Specification 236,452, [Class 23], is referred to.
Patent GB-182415-A (GB)
Title: Automatic valve for coal-washing and the like apparatus
IPC: B03B5/24
Filed: 1921-07-30
Abstract: 182,415. Courtoy, F. July 1, 1921, [Convention date]. Jigs.-A jig for washing coal, ores, or the like is provided with one or more automatic discharge valves which are opened bv suction when the water is drawn downwardly t h r o u g the charge, and are closed' upon the upward movement cf the water, the closing being assisted by the action of a coiled spring. The valve consists of a central rod 1 on the lower end of which is a valve head 2 resting upon the seat 3 which forms the base of the discharge pocket 17, the rod 1 being kept vertical by a guide-rod 14 sliding in a fixed stirrup 15. The middle of the rod carries a piston 4, provided with a packing-ring and operating in a cylinder 6, which is fitted at the top with a cover 10 provided with air escape holes, and is open at its lower end, being fixed by crowns 7 and 8 to the grating 9. A coiled spring 11 is fitted between the cap 10 and a plate 12, which is screwed and maintained in position upon the upper end of the rod 1 by a locking- nut 13.
Patent GB-240983-A (GB)
Title: Improvements in or relating to dial indicators for radio instruments
IPC: H03J1/04
Filed: 1924-09-01
Abstract: 240,983. Igranic Electric Co., Ltd., Curtis, A. H., and Dandridge, G. F. Sept. 1, 1924. Wireless tuning-apparatus, adjustment and indicating devices for.-A dial indicator for angularly adjustable radio instruments comprises a scale of angles adapted to be mounted to the adjustable part of the instrument and a cover to be mounted to the fixed part, for example a panel, so that it covers and protects the scale, the cover having an opening or window therein through which the scale is adapted to be read. The split brass bush 1, Fig. 1, is mounted on the instrument spindle and carries a plate 2 removably supporting a scale 3, relative movement between them being prevented by tongues on the scale engaging slots in the plate or by paper pins. A dished cover 4, fitting over the bush 1 is locked against rotary movement by projections 4<a> engaging recesses in the panel or parts carried thereby, and is provided with windows 9, 10 each having re-entrant pointers 11, 12, the pointer 11 indicating the adjustment and that 12 indicating a station callsign or wave-length which may be inscribed on the scale 3 when the instrument has been tuned to a particular station. An adjusting knob 6 is secured to the bush 1 and instrument spindle by a screw 7, and is separated from the cover 4 by a felt washer 8. In the form shown in Figs. 6 and 7. the cover 4 has only one window 9<a> and two pointers 11, 12, the latter being for the additional markings. The dial 3 is mounted directly on the bush 1, and the cover 4 is retained against angular movement by a fixing plate 15, having projections engaging recesses in the cover and being secured by the nut which secures the bearing bush of the spindle, the nut being screwed over the bush to clamp the plate 15 against the panel. The cover 4 may be of bakelite, or metal to avoid hand capacity effects. According to the Provisional Specification, the scale carrier consists of a disc having a central boss projecting from one side thereof and has means for receiving more than one dial scale. The windows may be glazed or may have a bull's eye lens, a hair line being provided for a glazed, and an arrow for an unglazed, window.
Patent GB-406201-A (GB)
Title: Improvements in and relating to electric transformers, condensers, switches and the like
IPC: H01B3/24
Filed: 1933-07-24
Abstract: 406,201. Condensers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitõts-Ges. ; 2, Friedrich Karl- Ufer, Berlin.) July 24, 1933, No. 20821. Convention date, July 23, 1932. [Class 38 (ii).] Insulating-material for electric condensers &c. comprises halogenated cyclic hydrocarbon compounds, which contain nitrogen in the nucleus or in the side chain. Examples given include chloro-pyridine, nitrated chlorodiphenyl compounds and nitrobenzene chlorides. Reference has been directed by the Comptroller to Specification 251,970, [Class 38 (ii)].
Patent GB-1436283-A (GB)
Title: Feeding-stuffs
IPC: A23K1/18
Filed: 1974-05-10
Abstract: 1436283 Animal feeds DIAMALT AG 10 May 1974 [11 May 1973] 20892/74 Heading A5B An animal feeding stuff additive consists of 0.1-10% by weight of pseudothymine together with customary pulverulent feeding stuff additives. The additive may be mixed with an animal feeding stuff mixture in such a quantity that the finished feeding stuff contains 10-500 ppm 'of pseudothymine relative to the solids content of the feed.
Patent GB-444053-A (GB)
Title: Improvements in or relating to systems for recording sound modulated electric currents
IPC: G11B7/00
Filed: 1935-07-24
Abstract: 444,053. Optical sound - recording apparatus. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of MacNair, W. A. ; 6, Cape Court, Millburn, New Jersey, U.S.A.) July 24, 1935, No. 21021. Convention date, July 28, 1934. [Class 40 (ii)] [See also Group XL] A system for recording sound modulated electric currents consists in supplying electric currents corresponding to the frequency characteristic of the sound to a light modulating device at substantially constant amplitude through an amplifier of which the gain is controlled by means of a control potential in accordance with the volume of the sound modulated currents and in controlling the intensity of the recording light by another control potential in accordance with the amplitude of the sound modulated currents, unilaterally conductive means being provided to limit both the control potentials to predetermined maximum values. As shown, sound modulated currents are led from the microphone 1 through an amplifier, which includes the variable gain amplifiers 5, 6, to a light valve 19. The amplifier may also include an interstage equalizer to accentuate high note response which may be switched in and out as desired by the switch 12. The light source 20 is fed from a battery 47 and also from an oscillator 25 in the output circuit of which is a variable gain amplifier 35, the variation in the gain of this amplifier being in the opposite sense to that in the amplifiers 5, 6. Sound modulated currents are also fed to a rectifier 88 in the output circuit of which are resistances 90, 71, 74 and 91. The slowly varying potentials developed across the resistances 71, 74 are applied to the amplifier 35 and the amplifiers 5, 6 respectively. According to the invention, in order to prevent excessive control voltages being applied to the amplifiers, rectifiers 97, 98 each connected to a separate source of biassing potential are shunted across the resistances 71, 74. Alternatively, a single rectifier may be shunted across both resistances. Condensers 93, 94 are bridged across the resistances 71, 90 and 74, 91 respectively in order to affect the timing of the control circuits whilst resistances 95, 96 having the property of relatively high resistance to low voltages and relatively low resistance to high voltages are shunted across the input circuit of the rectifier 88.
Patent GB-1019075-A (GB)
Title: Improvements in or relating to raking implements
IPC: A01D78/00
Filed: 1962-10-29
Abstract: 1,019,075. Haymaking machines. C. VAN DER LELY N.V. Oct. 29, 1962 [Nov. 24, 1961], No. 21097/65. Divided out of 1,019,074. Heading A1F. The subject-matter of this Specification is included in Specification 1,019,074 but the claims differ.
Patent GB-816537-A (GB)
Title: Method for the manufacture of hydrocarbon substances from oil shale
IPC: C10G1/00
Filed: 1957-07-03
Abstract: A method for the conversion of oil shale into hydrocarbon substances including acetylene, ethylene and benzene comprises retorting and quickly evolving the volatile material without substantial pyrolysis from an oil shale at a temperature between 550 DEG  and 800 DEG  C. and subsequently without intermediate condensation, pyrolyzing the volatile materials evolved from the oil shale in a separate cracking zone at a temperature between 650 DEG  and 950 DEG  C. for a period of between 0.1 and 10 seconds. Optimum yields of ethylene are obtained using a pyrolysis temperature of 800 DEG  C., of benzene using 900 DEG  C., and of acetylene by cracking the evolved volatile materials at 1150 DEG  C.  Retorting may be by a batch process or by a continuous flash process using nitrogen, hydrogen, methane or steam as diluent gases.  In examples, a Colorado oil shale was continuously retorted in a stainless steel tube at 760 DEG  C. and the cracked products passed directly to an electricallyheated cracking zone at 700-900 DEG  C.
Patent GB-678263-A (GB)
Title: Improvements in and relating to electric furnaces of the resistance type
IPC: H05B3/64
Filed: 1945-08-20
Abstract: 678,263. Resistance furnaces. REVERE COPPER & BRASS, Inc. Aug. 20,1945 [Jan. 18, 1945], No. 21212/45. Class 39(iii) Graphite resistance bars 67 are series connected by graphite members 73 slidably resting on bridge members 121 each carried by a pair of vertical graphite rods 125 suspended from and extending through interlapping graphite roof slabs 33, the rods being insulated from the slabs by washers 133. The two end resistor bars are connected by a coupling sleeve 79 to a graphite terminal extension 81 passing through an opening 83 in the lateral wall packed with a yieldable refractory layer 109 and supported outside the furnace by a hook attached to a labyrinth seal around the furnace exterior, thus allowing longitudinal and lateral movement of the extension. The bars 67 pass through a laterally oval hole 71 in the members 73, being clamped on both sides by nuts 75. In an alternative arrangement, the member connecting an adjacent pair of resistor bars, which are T- shaped with the leg of the T pointing downwards, rests on a laterally projecting lug carried by a single roof-suspended rod. Specification 678,262 is referred to.
Patent GB-987596-A (GB)
Title: Improvements in and relating to the drive of work spindles in multi-spindle lathes
IPC: B23Q5/14
Filed: 1962-06-01
Abstract: 987,596. Multi-Spindle lathes. ZAVODY PRESNEHO STROJIRENSTVI GOTTWALDOV NARODNI PODNIK. June 1, 1962 [June 3, 1961], No. 21217/62. Heading B3T. A multi-spindle lathe comprises an indexable work-spindle drum 25 and coaxial shafts V<SP>1</SP>, VII for driving the spindles 26 at different speeds, the shafts being driven by a shaft II. Drive for the shaft II is from an electromotor 1 and gears 2, 3. A gear 4 on shaft II meshes with a double-gear 5, 7 engageable selectively with gears 9, 11 on a shaft IV<SP>1</SP> which, through changegears 13, 15 drives the shaft V<SP>1</SP>. A similar arrangement of gears 6, 8, 10, 12, 18, 20 and change-gears 21, 22 drives the shaft VII. Gears 17, 23, on the ends of the shafts V<SP>1</SP>, VII within the drum 25, engage gears 19, 24 on the driving elements of clutches 27, 28, the driven elements of which are connected to the spindles. The clutches are selectively engaged by slidable control rings 29 which may be operated automatically when the spindle drum is indexed.
Patent GB-789689-A (GB)
Title: Improvements in and relating to magnetic recording or reproducing apparatus
Inventor: GUY NORMAN ALAN
IPC: G11B15/43
Filed: 1955-07-22
Abstract: 789,689. Magnetic recording apparatus. RANK PRECISION INDUSTRIES (B.A.F:), Ltd. July 18,1956 [July 22,1955], No. 21230/55. Class 40 (2). In magnetic recording or reproducing apparatus. comprising supply and take-up spools 1, 2 for the record carrier 5 and a capstan 3 for driving the carrier past magnetic heads 7, 8, 9, 10 and over fixed guide posts 6, 11, a movable guide post 12 is adapted to engage the carrier between the post 6 and the spool 1. The spools are driven by separate motors. The post 12 is so arranged that the amount of wrap of the carrier about the post decreases as the diameter of the carrier on the spool 1 decreases, the resulting decrease in friction giving a constant tension on the carrier as it reaches the capstan so that the carrier is driven at a uniform speed. A further movable post 13 is provided to permit the motion of the carrier being reversed. The posts 12, 13 may be moved away from the carrier during rewinding of the carrier at high speed.
Patent GB-1010029-A (GB)
Title: Process for the preparation of vulcanizable, essentially amorphous, olefinic terpolymers
IPC: C08F210/18
Filed: 1964-05-22
Abstract: Vulcanizable linear essentially amorphous terpolymers of two mono-olefins and a multicyclic diolefin having an endomethylenic bridge are made by copolymerizing the monomers in the presence of a catalyst system comprising: (a) a compound of a transition metal of Group IV a or V a of the Mendeleef's Periodic Table; and (b) an aluminium hydride soluble in organic solvents of the general formula <FORM:1010029/C3/1> where X and Y are hydrogen, halogen, or a secondary amino radical <FORM:1010029/C3/2> where R1 and R2 are the same or different alkyl, aryl alkylaryl, or cycloalkyl radical, or together with the nitrogen atom form a nitrogen-containing heterocyclic radical.  The hydride may be complexed with a Lewis base.  The preferred mono-olefins are ethylene and propylene. The cyclic diolefine may be a 2-alkyl-norbornadiene or an alkylene-norbornadiene, or dicyclopentadiene which is preferred. Specified (a) compounds are VCl3, TiCl3, VoCl3, TiCl4, Vo(OC2H5)3, and Ti(OC4H9)4. Preferred (b) compounds are AlHCl2.O(C2H5)2, AlHCl2.N (C2H5)3, AlH3.N(CH3)3, H2Al-N(CH3)2, AlH2Br.N(CH3)2, HBrAl-N(C6H5) 2, H2Al-N(C2H5)2, and HBrAl-N(CH3)2.  The catalyst may be preformed or formed in situ.  The polymerization may be effected in bulk, or in a hydrocarbon, or halogenated hydrocarbon solvent or diluent.  The polymer is recovered by conventional techniques, and can be fractionated by solvent extraction.  The terpolymers are vulcanized by known methods.
Patent GB-167775-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B75/02
Filed: 1921-08-11
Abstract: 167,775. Behn, A., and Schmitt, J. G. Aug. 12, 1920. [Convention date]. Void [Published under Sect. 91 of the Act]. Four-stroke-cycle engines; crank chambers; driving-gear.-In engines having pairs of pistons 29, 30 acted upon by one impulse, the cylinders 21-24 are arranged in pairs, and the upper pistons 30 of each pair are connected by rods 49 to a hollow gudgeon 48 common to the two pistons. The gudgeon drives the main crank shaft 16 through three connecting-rods 28, 49<1> and is guided by rollers 51 sliding on bearing surfaces 50<1>. The ends of the gudgeon are closed by caps 53 held on by a through bolt. The lower pistons 29 are directly connected to the crank shaft. The crank case has an integral lug 15 to enable the engine to be centred on the vehicle to which it is to be attached. Cylinders, cooling.-The cylinders and valve chests are surrounded by interconnected water jackets; the circulating pump 77, Fig. 2, is driven by a shaft 85, which also drives a magneto 83 and generator 84. The pump is connected with the bottom of the radiator and with a manifold 80; a second manifold 81 connects with the tops of the water jackets and the top of the radiator. Each valve chest 'contains the cam-actuated inlet and exhaust valves for two cylinders, the valve chest being a separate casting from the cylinder.
Patent GB-358597-A (GB)
Title: Improvements in and relating to footwear
IPC: A43C11/00
Filed: 1930-07-15
Abstract: 358,597. Foot-arch supports. ROBINSON, A. P., 9, Holyrood Road, Northampton. July 15, 1930, No. 21416. [Class 81 (ii).] Bracing, fastening, or tensioning means for footwear comprise fastening means such as a lace or a strap, engaging a loop or loops formed by bring- ing together two or more parts of the footwear to which tension is to be applied, and which have independent functions, or engaging one or more devices inserted in such loops, the loops being free to adjust themselves on the fastening means or on the inserted devices. The shoe upper, or a part attached thereto, may be folded to form a girdle 9, Fig. 5, the free edges of which are narrowed, and, as shown, secured to the shoe by the welt stitching 7. The girdle 9 may, however, be within the shoe and be extended under the foot and the ends adjustably secured together as by lacing. This part may be located to form a metatarsal band, and an elastic gusset may be inserted therein to maintain tension upon any desired part. Shaped pads may be interposed between parts of the foot and a shoe part which is to apply pressure thereto. The folded edge is slit at 4 to form loops 5 to receive lacing for bracing or supporting the instep or arch, or wire or strips of whalebone or other rigid material, notched to give flexibility may be arranged in the head of the fold and the lacing may be passed around such wire or through holes or eyelets in the strips. The inserted wire may be in short lengths and bent to form eyes which project through the slits 4 or separate eyes or loops may be attached to the wire. Metal tabs may be mounted on the wire to prevent curling of the folded parts of the upper under tension. A lace with a metal cross-tag or a strap may be used to engage the loops 5 and this may be so attached as to distribute tension applied thereto into a number of parts. The folded part of the upper may be masked by a flap furnished with eyelets through which the fastening lace may be passed to give a normal appearance to the shoe. An ankle strap 30 may be combined with the girdle 9 so as to be tensioned by the lacing.
Patent GB-1141035-A (GB)
Title: Improvements in or relating to battery topping-up and like cell filling devices
Inventor: GASH GEORGE WILFRED
IPC: H01M50/609
Filed: 1965-05-20
Abstract: 1,141,035. Battery topping-up devices. ELECTRIC POWER STORAGE Ltd. 20 May, 1966 [20 May, 1965; 2 March, 1966], Nos. 21442/65 and 9222/66. Heading H1B. An electric storage cell such as that shown in Fig. 1 at 10 has incorporated a topping-up device for filling it to a desired level, including an air-lock vessel 13, extending down into the cell and opening into it through an opening slightly below the desired liquid level, and a supply of topping-up liquid 12 connected to the upper end of the air-lock vessel through a liquid trap 18 affording a weir so as to permit flow of liquid into the air lock vessel only when the head of liquid H 1  in the supply above the weir exceeds the head of liquid H in the cell above the opening at the bottom of the air-lock vessel. The cell is filled from a feed tube 11 via a branch 19, and a balancing container is positioned at 14 with a spill hole 14a. When a multiplicity of cells are to be filled, a corresponding number of air-lock vessels are connected to the feed tube 11,
Patent GB-471082-A (GB)
Title: Improvements in or relating to advertising devices
IPC: G09F11/02
Filed: 1936-08-04
Abstract: 471,082. Moving signs. ROBERT, L. A. Aug. 4, 1936, No. 21500. Convention date, Aug. 2, 1935. [Class 3 (i)] A plurality of cylinders, prisms, &c. 5, each bearing a letter &c. on every side, are rotatably carried on vertical rods 2, and are frictionally engaged by a driving belt 7 lying in a pulley groove 4 in each sleeve 3 carrying the prisms &c. Pins 14a, 14b, 14c, 14d project radially from the sleeves 3, one pin corresponding to each letter &c. space. A number of levers 17, 17<1>, &c., one for each sleeve 3, are rigidly carried by a shaft 15, from the opposite side of which projects a lever 16 which is gradually lifted, and allowed to drop suddenly by spring or like action, by a snail cam 18 rotated through worm gearing 21 by the same motor 22 that drives the prisms. The levers 17 &c. rise immediately after releasing the bottom pins 14d and strike the top pins 14a to slow down the prisms against the driving action of the belt 7. As the levers 17 gradually fall, each set of pins 14 is released and the next set slowed for a short period, thus displaying a new word &c. The belt 7 is tensioned by a spring-retracted end pulley 9.
Patent GB-837825-A (GB)
Title: Improvements relating to air-blast electrical circuit-breakers
Inventor: ANDRE LATOUR
IPC: H01H33/867
Filed: 1957-07-08
Abstract: 837,825. Gas-blast switches. ETABLISSEMENTS MERLIN & GERIN. July 8, 1957 [July 10, 1956], No. 21511/57. Class 38 (5). A pneumatically opened air-blast circuitbreaker has its contacts pressed together by pneumatic means at the start of an opening operation. In Fig. 1, the pressure in the arc extinction chamber enters cylinders 7, 10 through orifices 9, 11, to act on the pistons 3, 2 of the moving contact 1. Although the cylinder 7 has a small orifice 8 open to the atmosphere the orifice 9 is so related to the orifice 11 that the initial effect is to urge the contact 1 upwards until the pressure above the piston 2 builds up so as to overcome the opposing air pressure and spring force and open the contacts. As the piston 2 moves downwards it uncovers further orifices 14 allowing greater air flow into the cylinder to accelerate the movement. During the latter part of its movement the piston 3 closes the orifice 9 so as to form an air buffer in the bottom of the cylinder 7 since air can only escape slowly through the orifice 8. On closing the air can escape from the cylinder 10 through non-return valves 16, 17. The fixed contact 4 is hollow and vented to the atmosphere. In Fig. 2, the hollow moving contact 1 is vented to atmosphere via holes 18, passage 19 and an orifice 20 which is sealed after arc-extinction by a slow-acting valve 21, 22, 23 operated by the arc-chamber pressure. In Fig. 3, the hollow stem 36 of the moving contact 1 is vented to atmosphere through holes 41, 20, and the cap 21 is arranged to seal the hole 20 in the circuit-open position. The moving contact 1 passes through a fixed cap 37, preferably of insulating material, and a second fixed cap 38 of metal, which acts as an arcing tip and electrostatic shield. In Fig. 4 (not shown) the orifice 9 is at the lower end of the cylinder 7 and has a non-return valve. Specification 837,824 is referred to.